482results about How to "Get rid of the bondage" patented technology

The invention relates to a multi-lens optical center superposing type omnibearing shooting device and a panoramic shooting and retransmitting method. A special optical path design is adopted to superpose the optical centers (comprising practical optical centers and virtual optical centers) of video cameras in different directions and eliminate the defects caused by optical path cross; meanwhile, images in global, semiglobular or circular regions are collected so that the information of video images in different depths of field can be well connected to form an integral omnibearing image. A user playing the video images at a client can select a needed view by moving a mouse, a rocker or a remote control, i.e., uplink data to be sent to a video server is changed. The video server cuts the generated panoramic video into different contents and sends the contents to corresponding clients according the requirements of the clients so that different users can freely view interested regions without mutual influence, the function for spectators at the clients to personally select fields of view is realized, and the spectators can glance to the left and to the right to have an immersed sense.

The invention provides a lower limb power-assisted exoskeleton robot gait pattern identification method and system. The method comprises the steps that a pressure sensing device embedded into a shoe sole of a lower limb power-assisted exoskeleton robot is used for detecting shoe sole pressure information of a wearer, the obtained shoe sole pressure information is compared and matched with walking modes in a human body gait database, a walking mode is obtained through judgment, movement phases in a gait period are identified, and a movement phase is obtained through judgment; data are processed and analyzed, results obtained after identification and matching are transmitted to a lower limb power-assisted exoskeleton robot control system to be used as a control basis. The walking mode and the detailed movement phase in each gait period of the lower limb power-assisted exoskeleton wearer provide the abundant decision basis for control over the lower limb power-assisted exoskeleton. The lower limb power-assisted exoskeleton robot gait pattern identification method and system not only can provide movement information of the wearer for the lower limb power-assisted exoskeleton, but also can be widely applied to human body gait identification.

The invention relates to a self-contained vacuum source negative pressure adsorption module. Three vacuum chucks are connected together through the module, and a self-contained vacuum pump of the module simultaneously vacuumizes to form negative pressure. The module mainly comprises the vacuum chucks, a one-way valve, the vacuum pump, a main bracket, a vacuum pressure sensor, a two-position two-way vacuum solenoid valve, a connecting frame, an air pipe, and the like. The two-position two-way vacuum solenoid valve controls the communication between inner cavities of the three vacuum chucks and the atmosphere; during non-communication, the vacuum chucks and the adsorbed surface form a sealed cavity, and the vacuum pump works to make the negative pressure formed in the cavity so as to generate the adsorption function; and during communication, the negative pressure of the vacuum chucks is relieved so as to separate the module from the adsorbed surface. The module has the advantages of simple structure, self-contained property, independent completion, and convenient connection with other modules or components, and can be used as an adsorption foot of a wall climbing robot or an end executor of a manipulation arm.

The invention discloses a Kinect-based non-contact type student physical fitness evaluation method. The objective of the invention is to solve the technical problem of poor practicability of an existing Kinect-based human behavior detection method. According to the technical schemes of the invention, the postures of a human body are obtained through color and infrared cameras provide with Kinect and are display on an interface in real time; the positions of the joins of the human body are recorded by using speculated bone nodes; the behaviors of the human body are speculated through comparing the position changes of the joints of the human body when the human body does various kinds of sports; the behaviors of the human body are matched with preset standard data, so that whether the actions of the human body are standard can be detected; and final results are fed back to the interface. Compared with the prior art, and according to the Kinect-based non-contact type student physical fitness evaluation method of the invention, constraint on a detected human body, which is caused by additionally arranging equipment on the detected human body, can be eliminated, and centralized testing of a large number of physical fitness evaluation objects can be facilitated; a backstage database system can automatically acquire physical fitness monitoring data, so that analysis and management on the physical fitness condition of students can be facilitated; and the average error of student physical fitness evaluation results is lower than 2%, and the student physical fitness evaluation results are insusceptible to subjective factors.

The invention provides a pulse wave acquisition device and a non-invasive blood pressure continuous beat-to-beat measuring system and method. The pulse wave acquisition device of an arm sleeve structure is adopted for the system to acquire brachial artery pulse wave signals and radial artery pulse wave signals, the system is low in power consumption, long in running time and more convenient and more comfortable to wear, and influences of inflation stimulus on an inflatable cuff on blood pressure measurement accuracy are avoided. A hemodynamic force detection analyzer in the system is connected with the pulse wave acquisition device wirelessly, and acquires, calculates and analyzes the brachial artery pulse wave signals and the radial artery pulse wave signals which are acquired by the pulse wave acquisition device; by combining the non-invasive blood pressure continuous beat-to-beat measuring method, non-invasive continuous beat-to-beat measurement of the blood pressure of a detected object is achieved, measurement operation is simplified, measurement accuracy is guaranteed, and the problem that because a non-invasive blood pressure measuring device and method in the prior art are tedious in operation and low in accuracy, continuous beat-to-beat measurement of blood pressure is hard to achieve is solved.

The invention relates to a method for realizing a radio frequency identification cargo positioning management system in an IOT (internet of thing) environment. The system is composed of five parts, namely an RFID (radio frequency identification) reader-writer, an RFID label, terminal equipment, system software and terminal software. All the information of a cargo is transmitted to computer terminal equipment by virtue of the RFID labels and then is written into a database server in a local area network; and a history record of the cargo getting in and out of a warehouse is recorded by a door control RFID reader-writer; and then the database server transmits the record to the terminal equipment by virtue of infrastructure networks, namely Ethernet and a local area network, and a warehouse manager can conveniently use related terminal equipment to monitor stock quantity in the current warehouse and the history record of the cargo which gets in and out of the current warehouse as long as the history record is in the coverage of the network, thus a warehouse cargo positioning management system based on the IOT is finally realized. The system can be practically applied to daily work management of an enterprise, and the manager can conveniently remotely monitor, find and position the information of the cargo in the warehouse.

The invention discloses a computer aided model construction method based on deep learning gastric cancer pathological sections, and belongs to the technical field of artificial intelligence. The method uses a 121-layer dense-connected convolutional neural network to perform image recognition. A dense block structure in a DenseNet allows the high-level part of the network to acquire shallow features, which greatly reduces the over-fitting phenomenon. At the same time, the model has a large number of layers, which can fit more complex and smoother decision functions. Although the number of layers is large, the number of parameters of the model is not large, which saves resource consumption. In order to further avoid over-fitting, a training mechanism for migration learning is adopted. The model will be pre-trained on an ImageNet dataset to give the model a strong image feature extraction capability. The main optimization of the model during formal training can be better focused on how toextract the features of the diseased area, and the utilization rate of the data is greatly improved.

The invention discloses wearable type equipment based on interactive interface human hand roaming control and interactive interface human hand roaming control method. The wearable equipment is shaped like a ring, and in use, the equipment is worn on a wrist of a user. The equipment specifically comprises a human hand movement information acquiring module, a data processing module, a control right dispatching module and a near field wireless receiving and transmitting module. The human hand roaming control method comprises the following steps that wireless communication is established between the equipment and a host machine, a user raises a hand and quickly and continuously rotates a wrist for two or more times or swings the wrist left and right to obtain equipment control right; a system acquires human hand movement information in real time, and the human hand movement information is displayed as movement of a simulation cursor on the interactive interface; the user fillips or clicks by a single finger or clicks by multiple fingers to select required function icons on the interactive interface. The equipment provided by the invention is wearable equipment which is low in cost and power consumption, and the method provided by the invention can provide the user a human-computer interaction experience which is comfortable and natural, and is precise in operation.

The invention discloses a regulation and control method of improving surimi system unfreezing forming and 3D (three dimensional) accurate printing performance and belongs to the technical field of preparation of 3D printed food materials. The regulation and control method comprises the following steps: unfreezing, mixing, blending, pre-forming, printing, post-setting, cooking frozen surimi and the like. According to the regulation and control method, as for an unfrozen surimi gel system, the printing temperature can be lowered, and the discharge rate and the stereo forming rate are increased; through induction by flaxseed gum and gluconic acid lactonic acid, the surimi gel has stable viscosity and mobility, surimi slurry is fine and smooth, and discharge is smooth without blockage; the surimi gel system can be prepared into fish product dining which maintains original characteristics and taste of a surimi product and has novel appearance and beauty through a 3D accurate printing technology.

The invention relates to a light-weight train automatic control system orienting to heavy haul railway of China. The system is connected equipment of a control center, interlocking equipment, equipment of a satellite positioning differential station, equipment of a transponder and track circuit equipment respectively; the train automatic control system comprises a ground control center ROC and vehicle-mounted equipment, wherein the ground control center ROC is connected with the equipment of a control center, interlocking equipment, equipment of a satellite positioning differential station andthe vehicle-mounted equipment respectively; the vehicle mounted equipment is connected with the equipment of the transponder, the ROC equipment and the track circuit equipment; the train automatic control system has a safety protection function, an operation plan management function, a temporary speed limitation management function and an automatic driving function on the basis of sufficiently reusing the achievements of existing heavy load train control system. Compared with the prior art, the system disclosed by the invention has the advantages of being light in weight, safe and efficient.

The invention provides a noninvasive and continuous blood pressure monitoring method and device based on pulse wave propagation time. The noninvasive and continuous blood pressure monitoring method and device are characterized in that standard II-lead ECG signals of a testee is detected through an electrocardiosignal detection unit under three body positions, including the body positions generated when the testee lies on his / her back, stands with arms vertically lifted and stoops, meanwhile PPG signals at the ends of index fingers are detected through a volume pulse wave signal detection unit, the time difference between the wave peak value point R of the ECG signals and the characteristic point of the PPG signals is measured through an upper computer signal processing unit and serves as the pulse wave propagation time PTT, correlation analysis and linear-regression analysis are conducted on the obtained PTT data and blood data recorded by an electronic sphygmomanometer, a regression equation of the PTT to blood pressure is established, and the blood pressure value is obtained indirectly by measuring the PTT. By means of the noninvasive and continuous blood pressure monitoring method and device, accuracy of continuous blood pressure detection and comfort of the testee can be effectively improved, long-term noninvasive and continuous blood pressure measuring can be achieved, portability of the device is high, great convenience is brought to examination operation, and real-time detection of the blood pressure value is achieved easily.

The invention provides a method for realizing screen projection from a single PC screen to multiple different device screens. The method comprises the following steps of (1) deploying screen projection software on a source terminal device to realize screen audio-video data acquisition and reception of a terminal, and sending audio-video data by using an RTSP protocol through H264 standard coding compression; (2) establishing local area network communication between the source terminal device and a display terminal device; (3) providing a display operation interface by the screen projection software, and displaying a searched display terminal device list in a local area network, wherein a user can check a plurality of display terminal devices for output and display; and (4) deploying display software on the display terminal devices to realize search response to the source terminal device, and decoding, displaying and outputting the received audio-video data subjected to the H264 standard coding compression. According to the method, the purpose of projecting screen audios and videos of a terminal to a plurality of terminals for display without a forwarding server in a wireless screen projection application at present is achieved.

The invention discloses hydrolysis-resistant dimmer acid type polyurethane which comprises 100 parts of polyester polylol, 18-35 parts of diisocyanate, 2-5 parts of chain extender, 0-5 parts of castor oil and 180-360 parts of organic solvent; and the preparation method comprises the following steps: performing decompression dehydration on the polyester polylol at the temperature of 110-120 DEG C for 2-3 hours, then reducing the temperature to 60-80 DEG C, adding the organic solvent and the diisocyanate, reacting for 1-3 hours at the temperature of 60-80 DEG C, obtaining a prepolymer, then adding the chain extender, the castor oil and the organic solvent, reacting for 1-3 hours at the temperature of 60-80 DEG C, adding the diisocyanate and the organic solvent into the obtained polymer, reacting for 2-5 hours at the temperature of 60-80 DEG C, and obtaining the solvent type polyurethane containing a dimmer acid structure unit. Considering from two aspects, namely economy and benefit, the hydrolysis-resistant dimmer acid type polyurethane with low cost is synthesized, and the hydrolysis-resistant dimmer acid type polyurethane has obvious application and market prospects.

The vehicle renting management system consists of IC card, identifying processing station, on-vehicle managing system, management center and communication network. The IC card has in its memory rate the finger mark information file of the card holder as his ID. While renting, the finger mark in the IC card and that of the tenant are compared in the identifying processing station to conform his identity.

The embodiment of the invention discloses a method for directly broadcasting real-time long-distance audio and video frequency. The method comprises the following steps of: calling an audio and video frequency acquisition procedure through a plug-in unit set up on a browser so as to acquire audio and video frequency data; encoding the audio and video frequency data, and sending the encoded audio and video frequency data to a streaming media server; and obtaining the audio and video frequency data from the streaming media server by using a player for direct broadcasting. The embodiment of the invention also discloses a device for directly broadcasting the real-time long-distance audio and video frequency. The embodiment of the invention can be used for avoiding the safety sandbox problem.

The invention relates to a wireless control method based on a touch-screen mobile phone. According to the method, wireless communication connection is established, and at a mobile phone end, the method comprises the following steps of: 1101) displaying a touchpad interface, wherein a touchpad comprises a panel, a left key and a right key; 1102) receiving an instruction for operating the touchpad by a user and converting the instruction into corresponding control-type data; 1103) storing the data into a data transmission queue according to a time sequence; and 1104) acquiring the data from the data transmission queue according to the time sequence, and transmitting the data to controlled equipment by the wireless communication connection; and at a controlled equipment end, the method comprises the following steps of: 1201) receiving the data by the wireless communication connection; 1202) storing the data into a data receiving queue according to a time sequence; 1203) acquiring the data from the date receiving queue according to the time sequence and converting the control-type data into the touchpad operation instruction; and 1204) executing the instruction at the controlled equipment end. The method also comprises connection-type data for establishing / interrupting the wireless communication connection.

The invention discloses a production method and a production system for parameterized steel bars applied to prefabricated components. The production method includes: by means of establishing and labelling a reference plane and defining labelled family parameters, realizing interrelation between the family parameters and the reference plane, establishing lofting path model lines and steel bar placement, locking paths and extension edge lines with the reference plane, and establishing a parameterized three-dimensional steel bar family model for the steel bars; during production of the prefabricated components, by the aid of the three-dimensional steel bar family model, re-inputting parameters to complete size change of same types of the components, and generating a production drawing; by the aid of the production drawing, realizing large-scale and refined production for the prefabricated components. The production method and the production system have the advantages that shape and size of the needed steel bars can be generated quickly by only modifying a few parameters, refined controlling of the steel bars is realized, constraints of inflexible freehand sketching for the steel bars by AutoCAD (automatic computer-aided design) are ridded of, the parameters of the steer bars can be input into various steel bar fabricating facilities directly, and convenience is brought to production and fabrication.

The invention discloses a movable stereoscopic multi-layered aeroponic system for an artificial-light plant factory. The movable stereoscopic multi-layered aeroponic system comprises a plurality of cultivation racks, a plurality of groups of ground tracks for movement of the cultivation racks, a nutrient solution pool for accommodating a nutrient solution, a ground drainage channel and a computer control system. The movable stereoscopic multi-layered aeroponic system not only adopts an artificial light source, realizes multi-layer stereoscopic cultivation in a closed artificial-light plant factory, and increases the yield of unit area, but also achieves movable cultivation and avoids the phenomenon that sidewalks are specially reserved between the cultivation racks in the plant factory, so that the planting area of the plant factory is increased, the land utilization rate is improved, and the cost of a unit product is lowered.

The invention relates to a terminal-spanning real-time interactive online distributing method of a lantern slide and belongs to the field of a computer science and technology application technology. The method comprises the following steps of: uploading a lantern slide file to a server side from a master control end through an HTTP (Hyper Text Transport Protocol) channel; analyzing the lantern slide file by the server side and analyzing all information in each page of the lantern slide file to a middle format and storing; carrying out interactive distribution on the lantern slide by the master control end to finish playing control and information interaction in which the master control end, the server side and a client are participated; and locally and persistently storing by the master control end and the client. Compared with the traditional method, the real-time online distribution of the lantern slide on each type of intelligent equipment is realized; an autonomous control capability of the client and an interactive communication capability of the master control end and the client are greatly enhanced; and transmission and storage of content and notes are finished in a playing process, so as to get rid of the constraint of a traditional computer and break through the limitation on time and space.

The invention provides a double-S-curve soft drafting device. According to the double-S-curve soft drafting device, the rigid-flex friction force field of a lattice apron and double-S-curve control system mode is utilized to control movement of fiber, the additional friction force field distribution in a main drafting region is more reasonable, and based on the same raw cotton, the yarn forming quality level is obviously superior to that of traditional ring spinning and compact spinning. The double-S-curve soft drafting device comprises an upper support and a lower base. One end of the upper support is connected to one end of the lower base through a rotating shaft. The upper end face of the lower base is sequentially provided with a front roller, a middle roller and a rear roller. The advancing direction of the yarn is set to be the front. The positions, corresponding to the front roller, the middle roller and the rear roller, of the lower end face of the upper support are provided with a front leather roller, a middle leather roller and a rear leather roller. The double-S-curve soft drafting device is characterized in that a center shaft of the middle leather roller is sleeved with a nylon support, the rear portion of the nylon support is arranged on the center shaft of the middle leather roller in a sleeving mode, the front portion of the nylon support is provided an S-curve plate, and the lower end face of the cross section of the S-curve plate is an S-shaped curve surface.

The invention relates to a quick abrasion testing method in the field of power machinery technique, aiming at providing an abrasion testing method used for a valve and a seat ring which are used for an internal-combustion engine. The method comprises a calibration stage and a test stage; in the calibration stage, a valve base is provided with a valve acceleration sensor; a displacement sensor is arranged above a valve spring seat ring; an electromagnet coil gets the electricity; an upper bit machine records the dripping speed and distance of the valve and determines the power-on control strategy for the electromagnet; during the test stage, the valve is heated by an installed burner; and the upper bit machine determines the rotation speed control strategy of the cooling water pump of a water cooling system. The quick abrasion testing method can achieve extremely high impact frequency, and shorten the testing time; the dripping speed of the valve can be jointly determined by two different sensors and the accuracy of the test is improved; the temperature of the cylinder cover is kept at the temperature of the cylinder cover when the internal combustion machine works normally, thus ensuring the reliability of the testing conclusion. The parts are few, the structure is simple and the manufacture cost is low.

A nontemplated method for producing Alpha-ferric oxide nanotubes comprises the steps of collecting 9-50 mmol / L ferric trichloride aqueous solution, adding equivoluminal 0.3-2.5 mmol / L sodium dihydrogen phosphate aqueous solution, stirring, placing into a sealed reaction vessel, sealing, performing constant temperature treatment at 180-270 DEG C for 12-72 hours, taking out of the reaction vessel, air cooling, separating red precipitate in the vessel, water washing for 2-5 times, and oven-drying in the air at 60-80 DEG C to obtain Alpha-ferric oxide nanotubes. The inventive method has the advantages of narrow size distribution of Alpha-ferric oxide nanotube particles, uniform tube diameter, simple production process and operation, good product reproducibility, and applicability to large-scale production.

The invention relates to a topological optimization design method for a cold plate liquid flow channel of an electric-electronic integration module. The method comprises the following steps: firstly establishing a finite element module, setting a growing initial point and finishing parameter initialization of self-adaption growth; then protocoling a self-adaption growth strategy of the cold plate liquid flow channel and giving out a method for determining growth direction and furcation of the cold plate liquid flow channel; finally performing step-by-step iteration growth of the cold plate liquid flow channel. By means of the topological optimization design method disclosed by the invention, optimized cold plate liquid flow channel distribution can be directly obtained; meanwhile, constraint of ground structure nodes is got rid, and the optimized cold plate liquid flow channel distribution is closer to the optimal result; an excessive demand that a designer has a lot of design experience is avoided, work of simulation, improvement and repeated simulation is prevented from being repeated, and work efficiency and design quality are obviously improved.

The invention discloses an attachable type electrocardiogram and impedance cardiogram integration monitoring sensor which comprises a first electrocardiogram detecting electrode, a second electrocardiogram detecting electrode, a first impedance cardiogram exciting electrode, a second impedance cardiogram exciting electrode, a first impedance cardiogram detecting electrode, a second impedance cardiogram detecting electrode, a thin film rechargeable battery, a signal storage unit and a wireless charging inductor which are connected with an electrocardiogram and impedance cardiogram signal detecting control circuit through interconnection leading wires. The electrocardiogram and impedance cardiogram signal detecting control circuit detects and processes electrocardiogram and impedance cardiogram signals, and local storage and external transmission are carried out. The novel sensor can be attached near the heart of a human body like a band-aid, meanwhile, electrocardiogram and impedance cardiogram continuous real-time monitoring is carried out, size is small, multiple functions are achieved, wireless charging and wireless data transmission can be carried out, the constraint of a traditional electrocardiogram and impedance cardiogram leading connecting line is avoided, wearing type monitoring is convenient, an integrated active dry electrode is used for monitoring, and the electrocardiogram and impedance cardiogram monitoring comfort degree is greatly improved.

The invention relates to an in-classroom and out-of-classroom integrated interaction system based on big data analysis which consists of a teacher end, a student end and a parent end. The system is used for integrating in-classroom and out-of-classroom activities, and problems of a conventional teaching mode can be well solved through information technology and big data analysis technology; efficiency of teaching, learning and supervising can be improved. Teachers teaching is not limited to in-classroom teaching, writing with chalk is not required, and pneumoconiosis can be prevented.

The invention discloses an unmanned aerial vehicle cluster collaborative learning method based on multi-agent reinforcement learning. The method comprises the steps of constructing an environment simulator based on aerodynamics; enabling each unmanned aerial vehicle to acquire and maintain a local observation value of the unmanned aerial vehicle; enabling each unmanned aerial vehicle to acquire and maintain a suggested observation value from a teammate as a student; providing a guidance value for other unmanned aerial vehicles as a teacher; executing an action strategy based on the local observation value of the machine and the suggested observation value obtained from the teammate, obtaining a reward and transferring to the next state; performing training based on the MADDPG thought untilthe value network and the strategy network converge; carrying out the execution stage in a distributed mode, that is, each unmanned aerial vehicle executes an action strategy based on the local observation value and the suggested observation value provided by the teammate. Complementation of observation values between unmanned aerial vehicle clusters can be achieved on the premise of relatively low cost, independent autonomous decision of the unmanned aerial vehicles is achieved, and the communication problem caused by a 'master-slave' structure is solved.

The invention belongs to the technical filed of computer network, and relates to a method and a system for processing an electronic transaction request. The method for processing the electronic transaction request comprises the following steps: acquiring transaction data required by finishing the transaction request; encoding the transaction data to generate a transaction document containing the transaction data; transmitting the transaction document by a transmission carrier; analyzing the transaction document; verifying the validity of the transaction request; writing the transaction data related with the valid transaction request into an account capital database; and returning the result of the transaction request. The transaction data comprises transaction information and a first electronic signature representing the identity of transaction requesters. The method and the system have the characteristics of high safety, convenience and quickness.

The invention discloses an online simulation system for a necessary bit single event upset fault on an SRAM type FPGA. The system design method belongs to the technical field of testing. The system isdesigned to be composed of an upper computer (1), namely a PC end, and a lower computer (2), namely an FPGA end. The system design of the upper computer (1) comprises a test interface (101), a necessary bit file extraction module (102), a debugging bit stream file analysis module (103) and a communication interface (104); the system design of the lower computer (2) comprises a main control module(201), a to-be-tested circuit (202), a gold circuit (203), a comparison circuit (204), a serial port communication module (205), a JTAG interface (206) and a configuration RAM (207). A test interface(101) located on an upper computer (1) sends an instruction command to a lower computer (2) to control a simulation process of single event upset fault simulation, and the lower computer (2) executescorresponding operation according to the received command and then returns a result. The method does not need participation of a processor, does not need external hardware expenditure, and can be flexibly transplanted to other ICAP-supporting FPGA chips.

The invention discloses a growth type topological optimization design method of a reinforcing rib. The growth type topological optimization design method comprises the following steps: firstly, growing points need to be set for the reinforcing rib, then, the reinforcing rib grows outwards from each growing point, strain energy generated when the reinforcing rib grows to each direction can be solved, and the direction represented by the minimum strain energy is selected as a reinforcing rib growth direction; according to the method, one section of reinforcing rib grows each time, and an integral reinforcing rib layout can be obtained through continuous iteration; and a part which causes the strain energy of the structure to be obviously lowered in the integral reinforcing rib layout is kept, and is artificially rounded off so as to obtain a final reinforcing rib layout. When the method is used for designing, a designer does not need to own long-term design experiences and does not need to do repeated work of analog, improvement and secondary analog, the position of the reinforcing rib can not be constrained by fixed nodes, and meanwhile, a clear reinforcing rib layout result can be obtained.